I remember back when I was still in Summer Rec Camp, I did alot of drawings. And this is one of them. This drawing is adjacent vowels. The first vowel gets to talk out loud and say it's name out loud, while the second vowel hates noise, covers, it's ears, and stay quiet. Today, I'm giving away these characters to one person. Someone will vectorise these letters and keep them.
This is the drawing before Toonphabet and this isn't Toonphabet related. You know where a's face is. e's eye is the hole and his mouse is the gap under the hook. i's face on the dot. o's mouth is it's hole. u's eyes are like stalks. and you know y and w (face in the middle) When I was young, I realized that w is a semi-vowel.